<template>
    <el-dialog :close-on-click-modal="false"
               :title="!dataForm.currentId ? '新增' : '修改'"
               :visible.sync="visible">
        <el-form :model="dataForm"
                 :rules="dataRule"
                 @keyup.enter.native="dataFormSubmit()"
                 label-width="80px"
                 ref="dataForm">
            <el-form-item label="分类图片"
                          prop="pic"
                          v-if="dataForm.type !== 2">
                <pic-upload v-model="dataForm.pic"></pic-upload>
            </el-form-item>
            <el-form-item label="分类名称"
                          prop="categoryName"
                          v-if="dataForm.type !== 2">
                <el-input :min="0"
                          controls-position="right"
                          label="分类名称"
                          v-model="dataForm.categoryName"></el-input>
            </el-form-item>
            <el-form-item label="上级分类">
                <el-cascader :clearable="true"
                             :options="categoryList"
                             :props="categoryTreeProps"
                             @change="handleChange"
                             change-on-select
                             expand-trigger="hover"
                             v-model="selectedCategory">
                </el-cascader>
            </el-form-item>
            <el-form-item label="排序号"
                          prop="seq"
                          v-if="dataForm.type !== 2">
                <el-input-number :min="0"
                                 controls-position="right"
                                 label="排序号"
                                 v-model="dataForm.seq"></el-input-number>
            </el-form-item>
            <el-form-item label="状态"
                          prop="status"
                          size="mini">
                <el-radio-group v-model="dataForm.status">
                    <el-radio :label="0">下线</el-radio>
                    <el-radio :label="1">正常</el-radio>
                </el-radio-group>
            </el-form-item>
        </el-form>
        <span class="dialog-footer"
              slot="footer">
      <el-button @click="visible = false"
                 size="small">取消</el-button>
      <el-button @click="dataFormSubmit()"
                 size="small"
                 type="primary">确定</el-button>
    </span>
    </el-dialog>
</template>
<script>
    import {idList, treeDataTranslate} from '@/utils'
    import PicUpload from '@/components/pic-upload'
    import {Debounce} from '@/utils/debounce'

    export default {
        data() {
            return {
                visible: false,
                dataForm: {
                    categoryId: 0,
                    currentId: 0,
                    grade: 0,
                    categoryName: '',
                    seq: 1,
                    status: 1,
                    parentId: 0,
                    pic: ''
                },
                dataRule: {
                    categoryName: [
                        {required: true, message: '分类名称不能为空', trigger: 'blur'},
                        {pattern: /\s\S+|S+\s|\S/, message: '请输入正确的分类名称', trigger: 'blur'}
                    ],
                    pic: [
                        {required: true, message: '分类图片不能为空', trigger: 'blur'}
                    ]
                },
                categoryList: [],
                selectedCategory: [],
                categoryTreeProps: {
                    value: 'categoryId',
                    label: 'categoryName'
                },
                isSubmit: false
            }
        },
        components: {
            PicUpload
        },
        methods: {
            init(id) {
                this.dataForm.currentId = id || 0
                this.dataForm.categoryId = id || 0
                this.$http({
                    url: this.$http.adornUrl('/prod/category/listCategory'),
                    method: 'get',
                    params: this.$http.adornParams()
                }).then(({data}) => {
                    this.categoryList = treeDataTranslate(data, 'categoryId', 'parentId')
                }).then(() => {
                    this.visible = true
                    this.$nextTick(() => {
                        this.$refs['dataForm'].resetFields()
                        this.selectedCategory = []
                    })
                }).then(() => {
                    if (this.dataForm.categoryId) {
                        // 修改
                        this.$http({
                            url: this.$http.adornUrl(`/prod/category/info/${this.dataForm.categoryId}`),
                            method: 'get',
                            params: this.$http.adornParams()
                        }).then(({data}) => {
                            this.dataForm.categoryId = data.categoryId
                            this.dataForm.categoryName = data.categoryName
                            this.dataForm.seq = data.seq
                            this.dataForm.pic = data.pic
                            this.dataForm.parentId = data.parentId
                            this.dataForm.status = data.status
                            this.selectedCategory = idList(this.categoryList, data.parentId, 'categoryId', 'children').reverse()
                        })
                    }
                })
            },
            handleChange(val) {
                this.dataForm.parentId = val[val.length - 1]
            },
            // 表单提交
            dataFormSubmit: Debounce(function () {
                if (this.selectedCategory.length === 1) {
                    this.dataForm.grade = 0
                }
                if (this.selectedCategory.length === 2) {
                    this.dataForm.grade = 1
                }
                if (this.selectedCategory.length === 3) {
                    this.dataForm.grade = 2
                }
                this.$refs['dataForm'].validate((valid) => {
                    if (valid) {
                        if (this.isSubmit) {
                            return
                        }
                        this.isSubmit = true
                        this.$http({
                            url: this.$http.adornUrl(`/prod/category`),
                            method: this.dataForm.categoryId ? 'put' : 'post',
                            data: this.$http.adornData({
                                'categoryId': this.dataForm.categoryId || undefined,
                                'categoryName': this.dataForm.categoryName,
                                'status': this.dataForm.status,
                                'seq': this.dataForm.seq,
                                'grade': this.dataForm.grade,
                                'parentId': this.dataForm.parentId,
                                'pic': this.dataForm.pic
                            })
                        }).then(({data}) => {
                            this.$message({
                                message: '操作成功',
                                type: 'success',
                                duration: 1000,
                                onClose: () => {
                                    this.isSubmit = false
                                    this.visible = false
                                    this.$emit('refreshDataList')
                                }
                            })
                        })
                    }
                })
            })
        }
    }
</script>
